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Merck
CN

38677

Hexamethylcyclotrisiloxane

analytical standard

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About This Item

Empirical Formula (Hill Notation):
C6H18O3Si3
CAS Number:
541-05-9
Molecular Weight:
222.46
NACRES:
NA.24
PubChem Substance ID:
329755774
UNSPSC Code:
77101502
EC Number:
208-765-4
MDL number:
MFCD00005943

Key Documents

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Product Name

Hexamethylcyclotrisiloxane, analytical standard

InChI key

HTDJPCNNEPUOOQ-UHFFFAOYSA-N

InChI

1S/C6H18O3Si3/c1-10(2)7-11(3,4)9-12(5,6)8-10/h1-6H3

SMILES string

C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O1

grade

analytical standard

vapor density

1 (vs air)

assay

≥97.0% (GC)

shelf life

limited shelf life, expiry date on the label

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

bp

134 °C (lit.)

mp

50-64 °C (lit.)

application(s)

cleaning products
cosmetics
environmental
food and beverages
personal care

format

neat

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Application

Hexamethylcyclotrisiloxane may be used as a test material to investigate its quality as an internal standard for quantification by 1H NMR (proton nuclear magnetic resonance) spectroscopy.
Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

signalword

Danger

pictograms

Flame
GHS02

hcodes

H228

Hazard Classifications

Flam. Sol. 1

Storage Class

4.1B - Flammable solid hazardous materials

wgk

WGK 3

flash_point_f

95.0 °F - closed cup

flash_point_c

35 °C - closed cup

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Certificates of Analysis (COA)

Lot/Batch Number
SDBB6588
STBL2824
STBK0611
STBJ9112
STBJ0701

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Torgny Rundlöf et al.
Journal of pharmaceutical and biomedical analysis, 52(5), 645-651 (2010-03-09)
In quantitative NMR (qNMR) selection of an appropriate internal standard proves to be crucial. In this study, 25 candidate compounds considered to be potent internal standards were investigated with respect to the ability of providing unique signal chemical shifts, purity
Leszek Kadziński et al.
Journal of pharmaceutical sciences, 104(4), 1275-1281 (2015-01-16)
Collagen, the most abundant protein in mammals, is able to form fibrils, which have central role in tissue repair, fibrosis, and tumor invasion. As a component of skin, tendons, and cartilages, this protein contacts with any implanted materials. An inherent
Roger Lille-Langøy et al.
Toxicology and applied pharmacology, 284(1), 54-64 (2015-02-15)
Many persistent organic pollutants (POPs) accumulate readily in polar bears because of their position as apex predators in Arctic food webs. The pregnane X receptor (PXR, formally NR1I2, here proposed to be named promiscuous xenobiotic receptor) is a xenobiotic sensor

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